/* ============================================================
   Portafolio — José Miguel Batista
   Sistema de diseño tomado de oakharborwebdesigns.com:
   fondo azul casi negro, acento azul eléctrico, titulares
   condensados en mayúsculas (Oswald), tarjetas negras con
   resplandor azul y botones píldora. La animación es parte
   del diseño: entrada al hacer scroll, flotación del hero y
   resplandores que respiran.
   ============================================================ */

/* ---------- 1. Tokens ---------- */
:root {
  --bg: #030f18;            /* azul casi negro */
  --bg-deep: #000205;
  --navy: #001f3f;
  --panel: rgba(0, 0, 0, 0.62);
  --panel-solid: #05121c;

  --accent: #43b7ff;        /* azul eléctrico */
  --accent-soft: rgba(67, 183, 255, 0.2);
  --accent-line: rgba(67, 183, 255, 0.28);

  --text: #fafbfc;
  --muted: rgba(250, 251, 252, 0.72);
  --line: rgba(250, 251, 252, 0.12);

  --glow: 0 0 24px var(--accent-soft), 0 0 39px var(--accent-soft), 0 0 60px var(--accent-soft);
  --glow-sm: 0 0 14px var(--accent-soft), 0 0 30px var(--accent-soft);
  --glow-in: inset 0 0 60px rgba(67, 183, 255, 0.12), inset 0 0 24px rgba(67, 183, 255, 0.1);

  --font-header: "Oswald", Arial Narrow, Arial, sans-serif;
  --font-body: "Source Sans 3", Arial, sans-serif;

  --title-size: clamp(1.9375rem, 3.9vw, 3.0625rem);
  --topper-size: clamp(0.8125rem, 1.6vw, 1rem);

  --measure: 76rem;
  --prose: 40.625rem;
  --section-pad: clamp(3.75rem, 7.8vw, 6.25rem);
  --radius: 1rem;
  --header-h: 76px;
  --ease: cubic-bezier(0.25, 0.6, 0.3, 1);
}

/* ---------- 2. Base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.5;
  overflow-x: hidden;
}

/* Halos azules fijos al fondo de la página */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(58rem 34rem at 78% -6%, rgba(67, 183, 255, 0.16), transparent 62%),
    radial-gradient(46rem 30rem at 6% 34%, rgba(67, 183, 255, 0.09), transparent 60%),
    radial-gradient(60rem 40rem at 50% 108%, rgba(0, 31, 63, 0.55), transparent 66%);
}

h1, h2, h3, h4 {
  margin: 0 0 0.5em;
  font-family: var(--font-header);
  text-transform: uppercase;
  line-height: 1.2;
  color: var(--text);
}
h1, h2 { font-weight: 900; }
h3, h4 { font-weight: 700; }

p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; }
img { max-width: 100%; height: auto; display: block; }

[hidden] { display: none !important; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

::selection { background: var(--accent); color: var(--navy); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

section[id] { scroll-margin-top: calc(var(--header-h) + 16px); }

/* ---------- 3. Utilidades ---------- */
.container {
  max-width: var(--measure);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.skip-link {
  position: absolute;
  top: 0; left: 1rem;
  z-index: 300;
  padding: 0.7rem 1rem;
  background: var(--accent);
  color: var(--navy);
  font-weight: 700;
  transform: translateY(-120%);
  transition: transform 150ms ease-out;
}
.skip-link:focus-visible { transform: translateY(0); }

.section { padding-block: var(--section-pad); position: relative; }
.section-alt { background: rgba(0, 0, 0, 0.28); }
.section-deep { background: rgba(0, 0, 0, 0.55); }

.section-head { margin-bottom: clamp(2rem, 4vw, 3.25rem); max-width: 46rem; }
.section-head.center { margin-inline: auto; text-align: center; }

.topper {
  display: block;
  margin: 0 0 0.5rem;
  font-family: var(--font-header);
  font-size: var(--topper-size);
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
}

.section-title {
  font-size: var(--title-size);
  margin: 0 0 1rem;
}

.section-lead, .section-note {
  margin: 0;
  max-width: var(--prose);
  color: var(--muted);
  font-size: 1.05rem;
}
.section-note { margin-top: 2.25rem; }

/* ---------- 4. Botones ---------- */
.btn {
  position: relative;
  z-index: 1;
  display: inline-block;
  overflow: hidden;
  min-width: 11.25rem;
  padding: 0 2.5rem;
  border-radius: 3.75rem;
  background: var(--accent);
  color: var(--navy);
  font-family: var(--font-header);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: clamp(2.875rem, 5.5vw, 3.25rem);
  text-align: center;
  text-transform: uppercase;
  text-decoration: none;
  box-shadow: var(--glow);
  transition: color 0.3s, box-shadow 0.3s;
}
.btn::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 0; left: 0;
  width: 0;
  height: 100%;
  background: var(--text);
  transition: width 0.3s var(--ease);
}
.btn:hover { color: var(--navy); text-decoration: none; box-shadow: 0 0 34px rgba(67, 183, 255, 0.45); }
.btn:hover::before { width: 100%; }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--accent-line);
  box-shadow: none;
}
.btn-ghost::before { background: var(--accent); }
.btn-ghost:hover { color: var(--navy); box-shadow: var(--glow-sm); }

.btn-sm {
  min-width: 0;
  padding: 0 1.4rem;
  font-size: 0.9rem;
  line-height: 2.5rem;
  box-shadow: var(--glow-sm);
}

.inline-link {
  color: var(--text);
  font-family: var(--font-header);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.95rem;
  white-space: nowrap;
  border-bottom: 1px solid var(--accent-line);
  padding-bottom: 2px;
  transition: color 0.3s, border-color 0.3s;
}
.inline-link:hover { color: var(--accent); border-color: var(--accent); text-decoration: none; }

/* ---------- 5. Cabecera ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(3, 15, 24, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background-color 0.3s;
}
.site-header.scrolled {
  border-bottom-color: var(--accent-line);
  background: rgba(3, 15, 24, 0.92);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: var(--header-h);
  transition: height 0.3s var(--ease);
}
.site-header.scrolled .header-inner { height: 64px; }

.brand {
  font-family: var(--font-header);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  white-space: nowrap;
}
.brand:hover { color: var(--accent); text-decoration: none; }

.nav-list { list-style: none; display: flex; gap: 1.6rem; }

.nav-link {
  position: relative;
  display: inline-block;
  padding-block: 0.4rem;
  color: var(--text);
  font-family: var(--font-header);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.3s;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  box-shadow: var(--glow-sm);
  transition: width 0.3s var(--ease);
}
.nav-link:hover { color: var(--accent); text-decoration: none; }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-link.active { color: var(--accent); }

.header-actions { display: flex; align-items: center; gap: 1rem; }

.header-cta { display: none; }
@media (min-width: 900px) { .header-cta { display: inline-block; } }

.lang-toggle { display: flex; gap: 2px; }
.lang-btn {
  padding: 0.25rem 0.4rem;
  color: var(--muted);
  font-family: var(--font-header);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  transition: color 0.3s;
}
.lang-btn:hover { color: var(--text); }
.lang-btn[aria-pressed="true"] {
  color: var(--accent);
  text-shadow: 0 0 12px rgba(67, 183, 255, 0.6);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 40px;
  height: 40px;
  padding: 9px;
}
.menu-bar {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--accent);
  box-shadow: var(--glow-sm);
  transition: transform 0.3s var(--ease);
}
.menu-toggle[aria-expanded="true"] .menu-bar:nth-child(1) { transform: translateY(4px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-bar:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }

/* ---------- 6. Hero ---------- */
.hero {
  position: relative;
  padding-block: clamp(4rem, 9vw, 7.5rem) clamp(3.5rem, 7vw, 6rem);
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.62), transparent 70%);
}

.hero-topper {
  display: block;
  margin: 0 0 0.75rem;
  font-family: var(--font-header);
  font-size: var(--topper-size);
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text);
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.25rem);
  margin-bottom: 1.25rem;
}
.hero-title .accent {
  color: var(--accent);
  text-shadow: 0 0 30px rgba(67, 183, 255, 0.45);
}

.hero-sub {
  max-width: 34rem;
  margin-bottom: 2rem;
  color: var(--muted);
  font-size: 1.15rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-bottom: 1.75rem;
}

.hero-availability {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
  animation: pulse-dot 2.4s ease-in-out infinite;
}

/* Maqueta: pantalla y móvil con el sitio real dentro */
.mockup {
  position: relative;
  margin-top: 3.5rem;
  max-width: 32rem;
}

.mockup-screen {
  padding: 0.6rem 0.6rem 0;
  border: 1px solid var(--accent-line);
  border-bottom: 0;
  border-radius: 0.85rem 0.85rem 0 0;
  background: rgba(0, 0, 0, 0.6);
  box-shadow: var(--glow), var(--glow-in);
}
.mockup-screen img { width: 100%; border-radius: 0.5rem 0.5rem 0 0; }

.mockup-base {
  position: relative;
  height: 14px;
  margin-inline: -5%;
  border: 1px solid var(--accent-line);
  border-radius: 0 0 0.9rem 0.9rem;
  background: rgba(0, 0, 0, 0.75);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.6);
}
.mockup-base::after {
  content: "";
  position: absolute;
  top: 0; left: 50%;
  width: 72px;
  height: 4px;
  border-radius: 0 0 4px 4px;
  background: var(--accent-line);
  transform: translateX(-50%);
}

.mockup-phone {
  position: absolute;
  right: -4%;
  bottom: -2.25rem;
  width: 24%;
  min-width: 86px;
  padding: 4px;
  border: 1px solid var(--accent-line);
  border-radius: 0.9rem;
  background: #000;
  box-shadow: var(--glow-sm);
}
.mockup-phone img { border-radius: 0.65rem; }

@media (min-width: 900px) {
  .hero-inner {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    column-gap: 3.5rem;
    align-items: center;
  }
  .mockup { margin-top: 0; max-width: none; }
}

/* ---------- 7. Tarjetas ---------- */
.card {
  position: relative;
  padding: clamp(1.5rem, 2.6vw, 2.25rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  transition: transform 0.4s var(--ease), border-color 0.3s, box-shadow 0.4s;
}
.card:hover {
  transform: translateY(-6px);
  border-color: var(--accent-line);
  box-shadow: var(--glow-sm), var(--glow-in);
}

.card-title {
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
  letter-spacing: 0.02em;
}
.card-body { margin: 0; color: var(--muted); }
.card-meta {
  margin: 0 0 0.6rem;
  font-family: var(--font-header);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}

.grid-3 { display: grid; gap: 1.5rem; }
@media (min-width: 720px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }

.grid-2 { display: grid; gap: 1.5rem; }
@media (min-width: 760px) { .grid-2 { grid-template-columns: repeat(2, 1fr); } }

/* Azulejo de icono */
.icon-tile {
  display: grid;
  place-items: center;
  width: 3.25rem;
  height: 3.25rem;
  margin-bottom: 1.1rem;
  border: 1px solid var(--accent-line);
  border-radius: 0.75rem;
  background: rgba(67, 183, 255, 0.08);
  color: var(--accent);
  box-shadow: var(--glow-sm);
  transition: box-shadow 0.3s, transform 0.4s var(--ease);
}
.icon-tile svg { width: 1.6rem; height: auto; }
.card:hover .icon-tile { transform: scale(1.06); box-shadow: 0 0 22px rgba(67, 183, 255, 0.5); }
.ic-accent { stroke: var(--accent); }
.ic-accent-fill { fill: var(--accent); }

/* ---------- 8. Trabajo ---------- */
.project { padding: clamp(1.5rem, 3vw, 2.5rem); }

.project-title {
  font-size: clamp(1.75rem, 3.4vw, 2.4rem);
  margin: 0 0 1rem;
}

.project-body {
  max-width: var(--prose);
  color: var(--muted);
  margin: 0 0 1em;
}

.row-figure {
  margin: 1.75rem 0;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow: var(--glow-in);
}

.row-links { display: flex; flex-wrap: wrap; gap: 1.5rem; margin: 0; }

.pieces-label, .shots-label {
  margin: 2.25rem 0 1.25rem;
  font-family: var(--font-header);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}

.pieces { display: grid; gap: 1.25rem; }
@media (min-width: 760px) { .pieces { grid-template-columns: 1fr 1fr; } }

.piece {
  padding: 1.4rem;
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  background: rgba(0, 0, 0, 0.45);
  transition: border-color 0.3s, box-shadow 0.4s, transform 0.4s var(--ease);
}
.piece:hover { transform: translateY(-4px); border-color: var(--accent-line); box-shadow: var(--glow-sm); }

.piece-title {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}
.piece-num {
  font-family: var(--font-header);
  font-weight: 700;
  color: var(--accent);
  text-shadow: 0 0 14px rgba(67, 183, 255, 0.5);
}
.piece-body { margin: 0; color: var(--muted); font-size: 0.97rem; }
.piece-links { display: flex; flex-wrap: wrap; gap: 1.25rem; margin: 0.9rem 0 0; }

.shots { display: grid; gap: 1.25rem; margin-top: 2rem; }
@media (min-width: 620px) { .shots { grid-template-columns: 1fr 1fr; } }
.shot {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.4);
  transition: border-color 0.3s, box-shadow 0.4s, transform 0.4s var(--ease);
}
.shot:hover { transform: translateY(-4px); border-color: var(--accent-line); box-shadow: var(--glow-sm); }
.shot figcaption {
  padding: 0.7rem 1rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-header);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

/* Capturas de la app: tres pantallas de teléfono en fila */
.app-shots {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
  max-width: 38rem;
}

.app-shot { margin: 0; text-align: center; }

.app-shot img {
  width: 100%;
  border-radius: 1.35rem;
  border: 2px solid rgba(250, 251, 252, 0.16);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.55);
  transition: transform 0.4s var(--ease), box-shadow 0.4s, border-color 0.3s;
}
.app-shot:hover img {
  transform: translateY(-6px);
  border-color: var(--accent-line);
  box-shadow: 0 16px 44px rgba(0, 0, 0, 0.55), var(--glow-sm);
}

.app-shot figcaption {
  margin-top: 0.8rem;
  color: var(--muted);
  font-family: var(--font-header);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ---------- 9. Sobre mí ---------- */
.about-grid { display: grid; gap: 2rem; align-items: start; }
@media (min-width: 820px) { .about-grid { grid-template-columns: 17rem minmax(0, 1fr); gap: 3rem; } }

.about-figure {
  margin: 0;
  border: 1px solid var(--accent-line);
  border-radius: var(--radius);
  overflow: hidden;
  max-width: 17rem;
  box-shadow: var(--glow-sm), var(--glow-in);
}

.about-body { color: var(--muted); max-width: var(--prose); }
.about-tech {
  margin: 1.25rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

/* ---------- 10. Compromisos ---------- */
.promises { list-style: none; display: grid; gap: 1.25rem; }
@media (min-width: 760px) { .promises { grid-template-columns: 1fr 1fr; } }

.promise {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  gap: 0.25rem 1rem;
  align-items: start;
  padding: 1.4rem;
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  background: rgba(0, 0, 0, 0.45);
  transition: border-color 0.3s, box-shadow 0.4s, transform 0.4s var(--ease);
}
.promise:hover { transform: translateY(-4px); border-color: var(--accent-line); box-shadow: var(--glow-sm); }

.promise-mark {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--accent-line);
  border-radius: 0.6rem;
  background: rgba(67, 183, 255, 0.08);
  color: var(--accent);
  box-shadow: var(--glow-sm);
}
.promise-mark svg { width: 1.2rem; }
.promise-title { margin: 0 0 0.35rem; font-size: 1.02rem; }
.promise-body { margin: 0; color: var(--muted); font-size: 0.97rem; }

/* ---------- 11. Proceso ---------- */
.process-list { list-style: none; display: grid; gap: 1.5rem; counter-reset: step; }
@media (min-width: 720px) { .process-list { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1060px) { .process-list { grid-template-columns: repeat(4, 1fr); } }

.step { position: relative; overflow: hidden; }
.step-num {
  display: block;
  margin-bottom: 0.4rem;
  font-family: var(--font-header);
  font-size: 2.75rem;
  font-weight: 900;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--accent);
  text-stroke: 1px var(--accent);
  opacity: 0.9;
  transition: color 0.4s, text-shadow 0.4s;
}
.step:hover .step-num { color: var(--accent); text-shadow: 0 0 24px rgba(67, 183, 255, 0.6); }

/* ---------- 12. Banda de cierre ---------- */
.cta-band { padding-block: clamp(2.5rem, 5vw, 4rem); }

.cta-band-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.75rem 2.5rem;
  padding: clamp(2rem, 4.5vw, 3.5rem);
  border: 1px solid var(--accent-line);
  border-radius: clamp(1rem, 3vw, 1.75rem);
  background:
    radial-gradient(38rem 18rem at 84% 0%, rgba(67, 183, 255, 0.18), transparent 65%),
    rgba(0, 0, 0, 0.66);
  box-shadow: var(--glow), var(--glow-in);
}

.cta-band-eyebrow {
  margin: 0 0 0.5rem;
  font-family: var(--font-header);
  font-size: var(--topper-size);
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
}

.cta-band-title {
  margin: 0;
  max-width: 24ch;
  font-size: clamp(1.6rem, 3.4vw, 2.5rem);
}

/* ---------- 13. Testimonios ---------- */
.testimonials { list-style: none; display: grid; gap: 1.5rem; }
@media (min-width: 760px) { .testimonials { grid-template-columns: repeat(2, 1fr); } }

.testimonial { margin: 0; }
.testimonial blockquote {
  margin: 0 0 1rem;
  color: var(--text);
  font-size: 1.05rem;
}
.testimonial::before {
  content: "\201C";
  display: block;
  font-family: var(--font-header);
  font-size: 3rem;
  line-height: 0.8;
  color: var(--accent);
  text-shadow: var(--glow-sm);
}
.testimonial figcaption {
  font-family: var(--font-header);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- 14. Contacto ---------- */
.contact-card { text-align: center; }
.contact-sub { margin: 0 auto 1.75rem; max-width: var(--prose); color: var(--muted); font-size: 1.05rem; }

.contact-email-line {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 0 0 1rem;
}

.contact-email {
  font-family: var(--font-header);
  font-size: clamp(1.35rem, 3.6vw, 2.25rem);
  font-weight: 700;
  color: var(--text);
  overflow-wrap: anywhere;
  transition: color 0.3s, text-shadow 0.3s;
}
.contact-email:hover { color: var(--accent); text-shadow: 0 0 24px rgba(67, 183, 255, 0.5); text-decoration: none; }

.copy-btn {
  padding: 0.35rem 0.9rem;
  border: 1px solid var(--accent-line);
  border-radius: 3rem;
  color: var(--muted);
  font-family: var(--font-header);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: color 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.copy-btn:hover { color: var(--accent); border-color: var(--accent); box-shadow: var(--glow-sm); }
.copy-btn.copied { color: var(--accent); border-color: var(--accent); }

.contact-whatsapp { margin: 0; }

/* ---------- 15. Pie ---------- */
.site-footer {
  padding-block: 2.5rem;
  border-top: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.5);
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.footer-inner p { margin: 0; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 1.5rem; }
.footer-nav a {
  color: var(--muted);
  font-family: var(--font-header);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: color 0.3s;
}
.footer-nav a:hover { color: var(--accent); text-decoration: none; }

/* ---------- 16. Animación ---------- */
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 10px var(--accent); opacity: 1; }
  50%      { box-shadow: 0 0 22px var(--accent); opacity: 0.65; }
}

@media (prefers-reduced-motion: no-preference) {
  @keyframes rise-in {
    from { opacity: 0; transform: translateY(26px); }
    to   { opacity: 1; transform: none; }
  }
  @keyframes float-y {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-14px); }
  }
  @keyframes glow-breathe {
    0%, 100% { box-shadow: 0 0 24px rgba(67, 183, 255, 0.18), 0 0 60px rgba(67, 183, 255, 0.14); }
    50%      { box-shadow: 0 0 34px rgba(67, 183, 255, 0.34), 0 0 80px rgba(67, 183, 255, 0.22); }
  }

  /* Entrada del hero */
  .hero-topper     { animation: rise-in 600ms var(--ease) 80ms both; }
  .hero-title      { animation: rise-in 700ms var(--ease) 160ms both; }
  .hero-sub        { animation: rise-in 700ms var(--ease) 260ms both; }
  .hero-actions    { animation: rise-in 700ms var(--ease) 360ms both; }
  .hero-availability { animation: rise-in 700ms var(--ease) 440ms both; }
  .mockup          { animation: rise-in 800ms var(--ease) 520ms both; }
  .mockup-screen   { animation: float-y 7s ease-in-out 1.4s infinite; }
  .mockup-phone    { animation: float-y 7s ease-in-out 2.1s infinite; }

  /* Aparición al hacer scroll (solo con JS activo) */
  html.js [data-reveal] {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 700ms var(--ease) var(--d, 0ms), transform 700ms var(--ease) var(--d, 0ms);
  }
  html.js [data-reveal].visible { opacity: 1; transform: none; }

  .cta-band-inner { animation: glow-breathe 6s ease-in-out infinite; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* ---------- 17. Móvil ---------- */
@media (max-width: 880px) {
  .menu-toggle { display: flex; }

  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    padding: 0.5rem 1.5rem 1.5rem;
    background: rgba(3, 15, 24, 0.98);
    border-bottom: 1px solid var(--accent-line);
    backdrop-filter: blur(14px);
    transform: translateY(-10px);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s var(--ease), opacity 0.3s, visibility 0.3s;
  }
  .site-nav.open { transform: translateY(0); opacity: 1; visibility: visible; }
  /* La cabecera encoge al hacer scroll: el menú la sigue */
  .site-header.scrolled .site-nav { top: 64px; }

  .nav-list { flex-direction: column; gap: 0; }
  .nav-link { display: block; padding-block: 0.9rem; font-size: 1.05rem; }
}